Embossing apparatus.



M. VERBBYST nmnossme', APPARATUS. v APPLIOATION FILED 11:13.19, 1913.. 1,093,664. n d Apr. 21, 19-14;

2 SHEETS-SHEET 1.

Q m Q E U i o o 4 est: W Inventor:

M. VERBEYST.

BMBOSSING APPARATUS.

APPLICATION FILED 113.19, 1913.

1,093,664. I Patented A r.21,1914

2 SHEETS-SHEET 2.

7 W In vento r:

. Atty.

maa'r'm vmmrs'r, or PARK nines, new JERSEY.

EMBOSSING ASPPARATUS.

Specification of Letters Patent.

Application filed February 19, 1918. Serial No. 749,581.

Patented Apr. 21,1914.

To all whom it may concern.

Be it known that I, MARTIN VnRBnYs'r, a citizen of the United States, residing at the borough of Park Ridge, in the county of Bergen and State of New Jersey, have 1nvented certain new and useful Improyements in Embossing Apparatus, of WlllCh the following is a specification, reference be ing had therein to the accompanying drawings, which form a part thereof.

My invention relates to embossing apparatus, and more particularly to a type thereof wherein the raising of the inked surfaces is secured by the application of heat to a printed and prepared sheet of paper.

The main object of the invention is to provide an apparatus wherein substantially the entire surface of the paper will be subjected to the action of a uniform heat of sufficiently high temperature to fuse the resinous composition previously applied to the printed portions of the sheet and combine it with the vehicle of the ink to secure the desired raising of the printed surface, which apparatus will operate at a continuous, comparatively high speed so as to insure capacity in the device and avoid injury to the fiber of the paper.

A further object is to provide an apparatus of this character wherein the feeding and delivery points will coincide so as to permit the operation of the machine by a single operator.

A still further object is to provide an apparatus of this kind wherein the heat will be simultaneously applied to both sides of the paper so as to insure a rapid and thorough fusion of the resinous astringent 4 composition.

A still further object is to provide an apparatus wherein all portions of the printed sheet will be supported in a manner to insure uniform heat conditions about the entire surface of the paper and prevent the accidental destruction or scorching of any portion of the printedv sheets. And a still further object 1s to provide an apparatus of this character which may be economically operated. D

The invention consists primarily in an embossing apparatus embodying therein -a heating chamber having a closed topand bottom, and side walls, one of which has a reduced opening therein, heating means within said chamber, a circular carrier rotatably mounted adjacent to said heatingchamber and projecting through said openmg, the carrying surface of said carrier consistlng of a plurality of grids spaced apart radially of said carrier, and means rotating sa1d carr1er;'and in such other novel features of construction and combination of parts as are hereinafter set forth and described, and more particularly pointed out in the dams hereto appended.

Referring to the -drawings:Figure 1 is a perspective view of an apparatus embodying my invention; Fig. 2 is a side view thereof with the heating chamber shown in cross section; and Fig. 3 is a cross section on an enlarged scale of one of the grid supporting spokes with a section of a grid shown thereon.

Like letters refer to like parts throughout the several views.

In the embodiment of my invention shown in the drawings, a indicates a frame sup porting a heating chamber, preferably semiclrcular in contour and having a closed bottom b and closed top 0, a semi-circular closed side wall 03 and a straight side Wall 6 forming a chord to the arc of said side Wall (E. The side wall 6 has a laterally elongated slot 6 therein, intermediate the bottom I) and top 0, and adj accnt to the latter. Within the heating chamber are a plurality of ordinary gas burners f, so arranged as to secure not only a thorough diffusion of the heat within the chamber, but also uniform application of the heat of these burners to all portions of the carrier. By this means a uniform application of heat to the printed sheet is secured, irrespective of the exact position of the paper upon the carrier, and all sheets will therefore be subjected to substantially uniform conditions while be ing conveyed through the heating chamber.

Mounted in the frame a adjacent the side wall e, is a vertical spindle g carrying a hub h from which a plurality of spokes z' radiate. Extending circumferentially about this hub 71., and secured to the spokes i are a plurality of annular grids j, all. positioned in the same horizontal plane and being of varying diameters so as to secure adequate support to a sheet of paper. These grids should be so spaced radially of the spokesi as to adapt the machine for use with sheets of paper of different sizes, as it is desirable to hold any sheet upon a horizontal plane and prevent the corners or edges thereof 3 from dropping between the grids where they might come within the destructive range of the burners f.. A portion only of the spokes i are adapted to project through the opening a into the. heating or fusing chamber.

A gridded carrier of the character described exposes the entire upper surface of the paper toward the top of the heating chamber, the inclosing of which portion above the slot 0 resulting in the maintenance of a high temperature about the printed surface of the paper and thus causing the fusion of the resinous or astringent composition by the direct application of heat as well. as the application of heat through the paper itself.

To expose as'much 'of' the lower surface of the paper as possible within the heating chamber, I make the spokes i triangular in cross sectionas shown in Fig. 3, and make the grids j ofcompa-rat-ively fine wire, preferably round cross section, thus provlding a substantiallylineal support for the paper at dilferentlpoints. thereof, and preventing the carrier from intercepting any of the heat rising from the burners f.

Mounted upon the frame a is a s eed re-' ducin mechanism comprising a main driving wheel 70, a worm shaft is actuated thereby, and a worm wheel 10 upon the shaft g. The wheel is may be driven from any desired source of power, preferably from the electrical motor Z mounted upon the frame a.

By the driving means described, the carrier is driven continuously at uniform speed, which speed should be determined by the length of time required to thoroughly fuse the resinous or astringent composition at the temperature developed within the heating chamber, and the speed with which the operator may feed the printed and prepared sheets to the. machine and remove them therefrom.

A construction such as is heretofore described not only secures compactness of structure and economy in the labor necessary to operate the apparatus, but all sheets passing through the apparatus are acted upon uniformly, thus insuring both capacity in the machine and uniformity in the product.

In addition to the foregoing, I secure by the type of heating. chamber and carrier described, a rapid'fusing of the resinous and astringent composition, the length of time duringwhich the paper is subjected to the heat withinthis chamber not being suffi- 'ciently great to injure the fibers of the paper itself. In other words, by subjecting the printed and' prepared sheets for a short period to a fairlyhigh temperature upon both" sides thereof simultaneously, and f'iiiainly to diffused heat, the composition to f'b combined with the vehicle of the ink may '1 be fused without subjecting 1 any portion of the paper to a continuing temperature which "would injure the paper in any way.

The operation of the herein described apparatus is substantially as follows :The paper is first printed upon with ordinary printers ink, and after having the resinous astringent in finely comminuted form applied to the printed portions thereof, each sheet is laid face upwardly upon the grids 9', while the carrier is being continuously rotated. After being laid upon the grids, each sheet is quickly conveyed through the heatin chamber, both surfaces thereof being su je'cted to diffused heat at substantially the same temperature. This action'will fuse the resinous astringent compound, and cause it to combine with the vehicle of the ink, raising the printed surface to give the effect of embossed work. Each sheet after assin through the heating chamber, is de ivere to the feeder, who removes same and places another sheet in its place.

By having the opening 0. adjacent the top a ofthe heating chamber, the carrier is spaced away from the burners f a suflicient distance to .avoid any possibility of the flame impinging upon the paper, or any portion thereof, and at the same time, the heat is given opportunity to diffuse so as to prevent a locahzed application of the heat to the paper. Furthermore, the spokes z' being triangular in cross section, Wlll limit the "surface thereof'adjacent to the paper, and at the same time act as agitators for securing a thorough diffusion of the heated air within the chamber and preventing stratification thereof.

It'isnot my intention to limit myself to the precise details of construction shown in the accompanying drawings, it being apparent that such may be varied without departing from the spirit and scope of the invention.

Having described my invention, what I claim as new and desire to have protected by Letters Patent, is

. 1. An embossing apparatus embodying therein a heating chamber having a closed top and bottom, and side walls, one portion of which has a reduced opening therein, heating means within said chamber, a circular carrier rotatably mounted exteriorly of and adjacent to saidheating chamber, a portion only of said carrier projecting through said opening, the carrying surface of said carrier comprising a plurality of grids spaced apart radially of said carrier, and, means rotating said carrier.

. 2. An embossing apparatus embodying therein a heating chamber having a closed top and bottom, and connecting side walls, one portion of which has a reduced opening therein adjacent to the closed top thereof,

heating means adjacent the closed bottom of said chamber, a clrcular carrier rotatably mounted exteriorly of and adjacent to said heating chamber, a portion only of said carrier projecting through said opening,

said carrier having a surface thereon pre-' sented toward the top of said chamber and adapted to receive sheets of paper, whereby said paper is carried through the upper zones of heat in said chamber and subjected to heat from above, and means rotating said carrier.

3. An embossing apparatus embodying therein a heating chamber having a closed top and bottom, and side walls, one portion of which has a reduced opening therein, heating means within said chamber, a circular carrier rotatably mounted exteriorly of and adjacent to said heating chamber, a portion only of said carrier projecting through said opening, the carrying surface of said carrier comprising a plurality of grids spaced apart radially of said carrier,

.and actuating means for said carrier comprising a rotary shaft, a source of power, and connecting means between said source of power and said shaft whereby said shaft is driven at a continuous, uniform speed.

a 4:. An embossing apparatus embodying therein a heating chamber having a closed top and bottom, and connecting side walls, one portion of which has a reduced opening therein adjacent to the closed top thereof, heating means adjacent the closed bottom of said chamber, a circular carrier rotatably mounted exteriorly of and adjacent to said heating chamber, a portion only of said carrier projecting through said opening, said carrier having a surface thereon presented toward the top of said chamber and adapted to receive sheets of paper, whereby said paper is carried through the upper zones of heat in said chamber and subjected to heat from above, and actuating means for said carrier comprising a rotary shaft, a source of power, and connecting means between said source of power and said shaft whereby said shaft is driven at a continuous, uniform speed.

5. An embossing apparatus embodying therein a heating chamber having a closed top and bottom, and side walls, one portion of which has a reduced opening therein,

heating means whereby the temperature within said chamber is raised, a circular carrier rotatably mounted adjacent to said heating chamber and projecting through said opening, said carrier comprising a plurality of radiating spokes and a series-of wires carried by said spokes and spaced apart radially of said carrier, and means ro tatlng sald carrier.

6. An embossing apparatus embodying with the apex presented toward said closed top, and a series of wires carried by said spokes and spaced apart radially of said carrier, and means rotating said carrier.

7. An embossingapparatus embodying therein a heating chamber having'a closed top and bottom, and connecting side walls, one portion of which has a reduced opening therein adjacent to the closed top thereof, heating'means adjacent the closed bottom of said chamber,'a circular'carrier rotatably mounted exteriorly of and -adja cent to said heating chamber, a portion only of said carrier projecting through said opening, said carrier having a surface thereon presented toward the top of said chamber and adapted to receive sheets of paper, whereby said paper is carried through the upper zones of heat in said chamber and subjected to heat from above, means movable with said carrier for agitating the air within said chamber, and means rotating said carrier.

In witness whereof, I have hereunto affixed my signature, in the presence of two subscribing witnesses, this 15th day of February, 1913.

MARTIN VERBEYST. 

